ViroConstants

A collection of constants used in the Viro Platform.

Example use:

Constants:

Video Recording/Screenshot Errors

JavaScript

import { ViroRecordingErrorConstants } from '@reactvision/react-viro';

if (returnValue == ViroRecordingErrorConstants.RECORD_ERROR_NONE) {
  console.log("Success!");
}

Name	Value	Notes
RECORD_ERROR_NONE	-1	Indicates that there is no error.
RECORD_ERROR_UNKNOWN	0	Indicates that the platform encountered an unknown error.
RECORD_ERROR_NO_PERMISSION	1	The user has denied permission required for recording/saving videos/screenshots.
RECORD_ERROR_INITIALIZATION	2	Indicates there was an error during initialization.
RECORD_ERROR_WRITE_TO_FILE	3	Indicates that there was an error writing to file.
RECORD_ERROR_ALREADY_RUNNING	4	Indicates that the system is already recording.
RECORD_ERROR_ALREADY_STOPPED	5	Indicates that the system is not currently recording.

AR Tracking States for ARScene

TypeScript

import { 
  ViroTrackingStateConstants,
  ViroARTrackingReasonConstants
} from '@reactvision/react-viro';

if (returnValue == ViroTrackingStateConstants.TRACKING_LIMITED) {
  if (reason == ViroARTrackingReasonConstants.TRACKING_REASON_EXCESSIVE_MOTION) {
    console.log("Stop shaking the camera so hard!");
  }
}

Name	Value	Notes
TRACKING_UNAVAILABLE	1	AR Camera position is not available.
TRACKING_LIMITED	2	Tracking is available but quality of results can be may be wildly inaccurate and should generally not be used
TRACKING_NORMAL	3	Camera position tracking is providing optimal results.
TRACKING_REASON_NONE	1	The current tracking state is not limited.
TRACKING_REASON_EXCESSIVE_MOTION	2	The device is moving too fast for accurate image-based position tracking.
TRACKING_REASON_INSUFFICIENT_FEATURES	3	The scene visible to the camera does not contain enough distinguishable features for image-based position tracking.